133312023 has 24 divisors (see below), whose sum is σ = 210785120. Its totient is φ = 80688960.

The previous prime is 133311991. The next prime is 133312051. The reversal of 133312023 is 320213331.

It is not a de Polignac number, because 133312023 - 2⁵ = 133311991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133311987 and 133312005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133312423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2203 + ... + 16476.

Almost surely, 2^133312023 is an apocalyptic number.

133312023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

133312023 is a deficient number, since it is larger than the sum of its proper divisors (77473097).

133312023 is a wasteful number, since it uses less digits than its factorization.

133312023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18759 (or 18756 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 133312023 is about 11546.0825824173. The cubic root of 133312023 is about 510.8457362965.

Adding to 133312023 its reverse (320213331), we get a palindrome (453525354).

The spelling of 133312023 in words is "one hundred thirty-three million, three hundred twelve thousand, twenty-three".